Rear sight for a firearm



FIG. 1 is a perspective view of rear sight for a firearm showing my new design.

FIG. 2 is a left view thereof.

FIG. 3 is a right view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is another perspective view of my new design.

FIG. 9 is a referential operational perspective view showing an open position of my new design.

FIG. 10 is a referential operational perspective view showing an open position of my new design with a rear sight in position; and,

FIG. 11 is another referential operational perspective view showing an open position of my new design with a rear sight in position. 

CLAIM The ornamental design for a rear sight for a firearm, as shown and described. 